Core/Maps: Continue updating creatures that own auras applied to players. Closes #22110.

src/server/game/Maps/Map.cpp

@@ -839,6 +839,18 @@ void Map::Update(uint32 t_diff)
             for (Creature* c : updateList)
                 VisitNearbyCellsOf(c, grid_object_update, world_object_update);
         }
+
+        { // Update any creatures that own auras the player has applications of
+            std::unordered_set<Unit*> toVisit;
+            for (std::pair<uint32, AuraApplication*> pair : player->GetAppliedAuras())
+            {
+                if (Unit* caster = pair.second->GetBase()->GetCaster())
+                    if (caster->GetTypeId() != TYPEID_PLAYER)
+                        toVisit.insert(caster);
+            }
+            for (Unit* unit : toVisit)
+                VisitNearbyCellsOf(unit, grid_object_update, world_object_update);
+        }
     }
 
     // non-player active objects, increasing iterator in the loop in case of object removal